FONL 

Fit of Nervous Laughter

When your so nervous and someone makes you laugh, or you are so nervous you laugh.

I went into a FONL at the thought of going to the dentist's.

FONL by mrgt March 6, 2011

FONL 

Fuck off now loser!

why don't you just FONL before I kick yo ass!

FONL by ms dilligaf April 24, 2011

FOnline

FOnline, though not the official Fallout Online that is being made by Interplay, this is a game made by a Russian group.
The game runs on an engine based off the Fallout 2 engine and is an MMORPG. At the moment, Online Beta Test 3 is open. The client consists of two FOnline games; FOnline: The Life After and FOnline: 2238.

Guy 1 - "Dude, you played FOnline?"
Guy 2 - "What's FOnline?"
Guy 1 - "It's an MMORPG based on Fallout 2, and it's free!"
Guy 2 - "Awesome!"

FOnline by Xavier-Marxel October 2, 2009

FONLYPE 

This is an acronym. Definition: Fear Of Not Loving Your Pet Enough. Pretty straight forward conceptual understanding.

Today, while working, I realized I may have FONLYPE. I was saddened to think, my beautiful cat may love me more than I love her, creating a palpable FONLYPE. I was sad to have uncovered my FONLYPE, but alas, now I am able to focus on the love I express toward Suzanne and will make sure she understands she is loved deeply and equal to her love for me.

FONLYPE by Gimmedemsweets August 24, 2021

Fonly 

Acronym of "Fuck off nobody loves you". used to refer to loners, nerds and losers, or to warn a friend off becoming socially inept.

Fuck sakes, man, Dungeons and Dragons is for fonlys.

Bob looks like such a fonly with his mullet flapping in the breeze.

Fonly by hiccup13 October 9, 2008

fonline

Faux online. Setting your IM client to represent you as active and available when in fact you are away from your computer.

When I got back from lunch I found that my boss had IM'd me half an hour before because I was fonline.

fonline by tellingemma March 9, 2009

fonllowing

A word used when following is to hard to spell for Vendicia

Provide me with the fonllowing please so we can get an est.

fonllowing by CrackBongHeadWTFGIBNAME March 14, 2022